Procedure to display the view number and execution time


Hi all

I'm creating a procedure to display the name of the view and its County and runtime to get this number if we adopt the view name in the procedure. so far, I have created the script below but it does not give any number. Please suggest me an idea to achieve this. I use Oracle Database 11 g Enterprise Edition Release 11.2.0.3.0 - 64 bit Production.

CREATE OR REPLACE PROCEDURE VIEW_TIME_SP ( P_VIEW_NAME IN VARCHAR2 )
IS
  V_START_DATE TIMESTAMP;
  V_END_DATE  TIMESTAMP;
  V_ROW_COUNT NUMBER;
  V_SQL       VARCHAR2(1000);
  V_LOG       VARCHAR2(1000);
  V_EXECUTION_TIME INTERVAL DAY TO SECOND;
  V_VIEW_NAME  VARCHAR2(40);

BEGIN
V_VIEW_NAME := P_VIEW_NAME;
EXECUTE IMMEDIATE 'ALTER SESSION SET NLS_DATE_FORMAT = ''dd-Mon-yyyy hh24:mi:ss''';
     
V_START_DATE := CURRENT_TIMESTAMP;
V_ROW_COUNT := 0;
V_SQL := 'SELECT COUNT(*) INTO' || V_ROW_COUNT || ' FROM '  || V_VIEW_NAME;
EXECUTE IMMEDIATE V_SQL;
V_END_DATE := CURRENT_TIMESTAMP;
V_EXECUTION_TIME := V_END_DATE - V_START_DATE;
V_LOG := V_VIEW_NAME || ' returns ' || V_ROW_COUNT || ' and completed in ' || V_EXECUTION_TIME;
DBMS_OUTPUT.PUT_LINE (V_LOG);
EXCEPTION
  WHEN OTHERS THEN
   DBMS_OUTPUT.PUT_LINE ('process failed:' || SQLCODE || ': ' || SQLERRM);
END VIEW_TIME_SP;

Appreciate your help.

Thank you

Hello

MSB says:

Hi all

I'm creating a procedure to display the name of the view and its County and runtime to get this number if we adopt the view name in the procedure. so far, I have created the script below but it does not give any number. Please suggest me an idea to achieve this. I use Oracle Database 11 g Enterprise Edition Release 11.2.0.3.0 - 64 bit Production.

  1. CREATE OR REPLACE PROCEDURE VIEW_TIME_SP (P_VIEW_NAME IN VARCHAR2)
  2. IS
  3. V_START_DATE TIMESTAMP;
  4. V_END_DATE TIMESTAMP;
  5. NUMBER OF V_ROW_COUNT;
  6. V_SQL VARCHAR2 (1000);
  7. V_LOG VARCHAR2 (1000);
  8. V_EXECUTION_TIME INTERVAL DAY TO SECOND.
  9. V_VIEW_NAME VARCHAR2 (40);
  10. BEGIN
  11. V_VIEW_NAME: = P_VIEW_NAME;
  12. EXECUTE IMMEDIATE 'ALTER SESSION SET NLS_DATE_FORMAT = "dd-Mon-yyyy hh24:mi:ss" ';
  13. V_START_DATE: = CURRENT_TIMESTAMP;
  14. V_ROW_COUNT: = 0;
  15. V_SQL: = ' SELECT COUNT (*) IN "| V_ROW_COUNT | 'FROM ' | V_VIEW_NAME;
  16. IMMEDIATELY RUN V_SQL;
  17. V_END_DATE: = CURRENT_TIMESTAMP;
  18. V_EXECUTION_TIME: = V_END_DATE - V_START_DATE;
  19. V_LOG: = V_VIEW_NAME | 'returns "| V_ROW_COUNT | "and completed in | V_EXECUTION_TIME;
  20. DBMS_OUTPUT. PUT_LINE (V_LOG);
  21. EXCEPTION
  22. WHILE OTHERS THEN
  23. DBMS_OUTPUT. Put_line (' process failed:' |) SQLCODE. ': ' || SQLERRM);
  24. END VIEW_TIME_SP;

Appreciate your help.

Thank you

Whenever you write dynamic SQL code, during the debugging phase, display the dynamic string before running it.  For example

V_SQL: = ' SELECT COUNT (*) IN "| V_ROW_COUNT | 'FROM ' | V_VIEW_NAME;
dbms_output.put_line (v_sql |) '= v_sql in view_time_sp");
IMMEDIATELY RUN V_SQL;

You will see that v_sql is something like:

SELECT COUNT (*) VIEW_X INTO0'

You do not want the value of v_row_count; you want the name v_row_count, and he didn't need to be part of the dynamic statement.  Try this:

V_SQL: = ' SELECT COUNT (*) FROM "| V_VIEW_NAME;
dbms_output.put_line (v_sql |) '= v_sql in view_time_sp");
EXECUTE IMMEDIATE V_SQL IN v_row_count;

Tags: Database

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